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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(inets_lib).
+-compile([{nowarn_deprecated_function,{erlang,now,0}}]).
+
+-export([millisec_passed/1, formated_timestamp/0, format_timestamp/1]).
+
+
+
+%% Help function, elapsed milliseconds since T0
+millisec_passed({_,_,_} = T0 ) ->
+ %% OTP 17 and earlier
+ timer:now_diff(erlang:now(), T0) div 1000;
+
+millisec_passed(T0) ->
+ %% OTP 18
+ erlang:convert_time_unit(erlang:monotonic_time() - T0,
+ native,
+ micro_seconds) div 1000.
+
+%% Return formated time stamp (e.g. 2015:03:16 10:05:23 1234)
+formated_timestamp() ->
+ format_timestamp( os:timestamp() ).
+
+%% Return formated time stamp (e.g. 2015:03:16 10:05:23 1234)
+format_timestamp({_N1, _N2, N3} = Tme) ->
+ {Date, Time} = calendar:now_to_datetime(Tme),
+ {YYYY,MM,DD} = Date,
+ {Hour,Min,Sec} = Time,
+ FormatDate =
+ io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
+ [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
+ lists:flatten(FormatDate).